Science: Investigative files released yesterday to a climate science blog by an unnamed US lawmaker suggest a new twist in the ongoing University of East Anglia climate e-mails saga, writes Eli Kintisch for Science. Other online writers argue that the files contain evidence that a government climate scientist in May 2008 deliberately deleted e-mails related to a major climate report. The scientist, Eugene Wahl of the National Climatic Data Center in Boulder, Colorado, admits to deleting the e-mails, but he says online reports on the investigative files have misconstrued a central point: Embattled climatologist Michael Mann did not ask him to delete them. Mann, whom Science reached on vacation in Hawaii, confirmed, “I didn’t delete any e-mails and nor did I tell Wahl to delete any e-mails.”